1. Department of Mathematics, Faculty of Science and Arts, Bozok University, 66100 Yozgat, Turkey
2. Department of Engineering Sciences, Faculty of Technology and Engineering, East of Guilan, University of Guilan, P.C. 44891-63157, Rudsar-Vajargah, Iran
3. Operator Theory and Applications Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, PO Box-80203, Jeddah-21589, Saudi Arabia
4. School of Electronics and Information Engineering, Wuhan Donghu University, Wuhan 430212, P. R. China
5. Department of Mathematics and Statistics, Tshwane University of Technology, Pretoria-0008, South Africa
6. Science Program, Texas A & M University at Qatar, PO Box 23874, Doha, Qatar